June 25 (Reuters) - A five-week strike by Montreal-area

Safran SA workers who make landing-gear components used

in Boeing ( BA ) and Airbus jets shows no signs of

resolution as planemakers say supply-chain snags are hampering

production.

Workers picketed on Tuesday outside the factory in Mirabel,

Quebec, where Safran has been running operations using personnel

who are not striking, a company spokesperson said.

The aerospace industry has been beset by supply issues for

months. European aerospace giant Airbus on Monday lowered its

forecast for deliveries this year to around 770 jets from 800

and delayed a multi-year hike in narrowbody production, blaming

shortages of engines and other parts, including landing gear.

Since June 12, Paris-based Safran and the union have been in

conciliation, a process by which labor disputes are resolved in

Canada. The two sides are far from a resolution, with Safran

saying it has made its final offer.

Safran has offered a 14.5% raise over three years, while

workers represented by the Confederation des syndicats nationaux

union want an estimated 22% salary hike.

"We have demands that we have made known since the start,"

said union local president Michael Durand.

He said the union has asked Quebec's labor ministry to

inspect the plant for the use of non-managers and non-unionized

workers to manufacture parts. Under Quebec law, managers can

work during a strike.

Safran said the company's offer is competitive given the

practices of other aerospace companies in the Montreal region.

Christian Scherer, who took over as head of Airbus's

planemaking division in January, told German newspaper Hamburger

Abendblatt that supplies of engines, landing gear and cabin

components are key problem areas.

The Safran workers produce parts used for the assembly of

landing gear at a rate of about 10 to 14 units a week for

Airbus's A320 family, Durand said. Other Safran factories also

produce the same parts.